Respuesta :

altavistard
Each new term of this arith. seq. is obtained by adding 4 to the previous term.  Hence, 15 = 11+4; 19=15+4, and so on.  Add 4 to 19 to get the next term.  Keep going until you have 4 new terms for the arith. seq. 11, 15, 19, .....